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Vulnerability DatabaseCVE-2023-32249
CVE-2023-32249:
Linux Debian vulnerability analysis and mitigation
Overview
The Linux Kernel ksmbd Multichannel Improper Authentication vulnerability (CVE-2023-32249) was discovered in May 2023. This vulnerability affects the Linux Kernel's ksmbd component, specifically within the handling of Session ID in Multichannel functionality (ZDI Advisory).
Technical details
The vulnerability stems from the lack of proper isolation when performing lookup on a session within the ksmbd component. The issue has been assigned a CVSS v3.1 base score of 6.5 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N), indicating a high severity rating. Authentication is not required to exploit this vulnerability, though only systems with ksmbd enabled are vulnerable (ZDI Advisory).
Impact
An attacker can leverage this vulnerability to hijack arbitrary live sessions on the affected system. This could potentially lead to unauthorized access to sensitive information and partial system compromise (ZDI Advisory).
Mitigation and workarounds
Linux has released an update to address this vulnerability. The fix was implemented through a patch that can be found in the Linux kernel repository (ZDI Advisory).
Additional resources
Source: This report was generated using AI
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